2009424 has 20 divisors (see below), whose sum is σ = 5191136. Its totient is φ = 669792.

The previous prime is 2009407. The next prime is 2009437. The reversal of 2009424 is 4249002.

It is a self number, because there is not a number n which added to its sum of digits gives 2009424.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20884 + ... + 20979.

2^2009424 is an apocalyptic number.

2009424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2009424 is an abundant number, since it is smaller than the sum of its proper divisors (3181712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2009424 is a wasteful number, since it uses less digits than its factorization.

2009424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41874 (or 41868 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 2009424 is about 1417.5415337830. The cubic root of 2009424 is about 126.1896865784.

The spelling of 2009424 in words is "two million, nine thousand, four hundred twenty-four".